P0A1D-187 - Hybrid Powertrain Control Module

L110 HYBRID VEHICLE CONTROL: HYBRID CONTROL SYSTEM: P0A1D-187: Hybrid Powertrain Control Module
P0A1D-187 - Hybrid Powertrain Control Module

DESCRIPTION

The hybrid vehicle control ECU monitors its internal operation and detects malfunctions.





MONITOR DESCRIPTION

The hybrid vehicle control ECU performs diagnostic monitoring to verify proper operation of internal and external ECU systems. In one of these diagnostics, the hybrid vehicle control ECU monitors the important RAM circuits of the hybrid vehicle control ECU. If the hybrid vehicle control ECU detects an error in the important RAM circuits, it will conclude that there is an internal malfunction in the hybrid vehicle control ECU. The hybrid vehicle control ECU will illuminate the MIL and set a DTC.

MONITOR STRATEGY





TYPICAL ENABLING CONDITIONS





TYPICAL MALFUNCTION THRESHOLDS





COMPONENT OPERATING RANGE





INSPECTION PROCEDURE

PROCEDURE

1. REPLACE HYBRID VEHICLE CONTROL ECU

HINT
Service and Repair

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